Which of the following is NOT one of the eight known pathogens responsible for foodborne illnesses?

Staphylococcus epidermidis is not listed among the eight known pathogens responsible for foodborne illnesses. Instead, it is a common skin bacterium that typically does not cause foodborne disease. The primary pathogens known for causing foodborne illnesses include Campylobacter, Escherichia coli (especially specific strains like O157:H7), and Salmonella, which are well-documented for their association with contaminated food.

Understanding the role of pathogenic bacteria in food safety is crucial. The recognized pathogens often have specific reservoirs in food sources or the environment, and they are associated with particular illness outbreaks. In contrast, Staphylococcus epidermidis is usually harmless and is part of the normal flora of human skin, thus making it irrelevant in the context of foodborne pathogens. Recognizing which organisms are significant in causing illness helps in implementing appropriate food safety strategies.